From Basics to Advanced: Go Programming Language Examples

Go is a programming language that was developed by Google in 2007. It is a statically typed, compiled language that is designed for building simple, reliable, and efficient software. Go has gained popularity in recent years due to its ease of use, powerful standard library, and excellent performance.

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In this article, we will explore some basic and advanced examples of Go programming language to showcase its capabilities.

Basic Examples:

1. Hello, World!

Let’s start with the classic “Hello, World!” program in Go:

“`go

package main

import “fmt”

func main() {

fmt.Println(“Hello, World!”)

}

“`

This program simply prints out the text “Hello, World!” to the console.

2. Variables and Constants

In Go, you can declare variables using the `var` keyword and constants using the `const` keyword. Here is an example:

“`go

package main

import “fmt”

func main() {

var name string = “John”

const age int = 30

fmt.Println(“Name:”, name)

fmt.Println(“Age:”, age)

}

“`

This program declares a variable `name` of type string and a constant `age` of type int.

Advanced Examples:

1. Goroutines and Channels

One of the key features of Go is its support for concurrent programming using goroutines and channels. Goroutines are lightweight threads that allow you to run multiple tasks concurrently. Channels are used to communicate between goroutines. Here is an example:

“`go

package main

import (

“fmt”

“time”

)

func printNumbers(ch chan int) {

for i := 1; i